Title:
IN-SCREEN PREDICTION MODE DECISION METHOD, IMAGE ENCODING METHOD, AND IMAGE ENCODING DEVICE
Document Type and Number:
WIPO Patent Application WO/2007/072895
Kind Code:
A1
Abstract:
Provided is a method for reducing the processing amount when deciding an in-screen
prediction mode while maintaining the encoding efficiency at a certain level
in an in-screen prediction encoding. A representative value of at least three
regions constituting a block to be encoded is calculated. An error sum of at least
two of the representative values distributed in one direction and an error sum
of at least two of the representative values distributed in at least one direction
different from the aforementioned direction are calculated. At least one in-screen
prediction mode in the direction where the error sum is minimum among the calculated
at least two errors is decided. Thus, it is possible to reduce the processing load
when deciding the in-screen prediction mode.
Inventors:
TAKAGI KAZUYA
Application Number:
PCT/JP2006/325464
Publication Date:
June 28, 2007
Filing Date:
December 21, 2006
Export Citation:
Assignee:
MATSUSHITA ELECTRIC IND CO LTD (JP)
TAKAGI KAZUYA
TAKAGI KAZUYA
International Classes:
H03M7/36; H04N19/50; H04N19/124; H04N19/132; H04N19/136; H04N19/196; H04N19/593
Foreign References:
| JP2004304724A | 2004-10-28 | |||
| JP2005176073A | 2005-06-30 | |||
| JP2000078583A | 2000-03-14 | |||
| JP2005328383A | 2005-11-24 | |||
| JP2005268879A | 2005-09-29 |
Attorney, Agent or Firm:
NII, Hiromori (6F Tanaka Ito Pia Shin-Osaka Bldg., 3-10, Nishi Nakajima 5-chome, Yodogawa-k, Osaka-city Osaka 11, JP)
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